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v3.10.0.1

Consolidated Statements of Comprehensive Income (Loss) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
May 31, 2018 | May 31, 2017 | May 31, 2018 | May 31, 2017
Revenue: |  |  |  |
Processing and storage fees | $ 6,295,455 | $ 5,846,227 | $ 12,495,522 | $ 11,458,051
Licensee and royalty income | 203,159 | 328,669 | 203,159 | 328,669
Product revenue | 26,849 | 61,855 | 54,900 | 226,655
Total revenue | 6,525,463 | 6,236,751 | 12,753,581 | 12,013,375
Costs and Expenses: |  |  |  |
Cost of sales | 1,777,138 | 1,591,966 | 3,378,646 | 3,108,063
Selling, general and administrative expenses | 3,533,057 | 3,411,759 | 7,122,576 | 6,509,914
Research, development and related engineering | 29,284 | 8,840 | 42,693 | 23,456
Depreciation and amortization | 36,248 | 31,936 | 72,793 | 63,566
Total costs and expenses | 5,375,727 | 5,044,501 | 10,616,708 | 9,704,999
Operating Income | 1,149,736 | 1,192,250 | 2,136,873 | 2,308,376
Other Expense: |  |  |  |
Other income (expense) | 9,785 | (38,259) | (23,780) | (64,701)
Interest expense | (304,094) | (325,314) | (585,071) | (622,358)
Total other expense | (294,309) | (363,573) | (608,851) | (687,059)
Income before income tax expense | 855,427 | 828,677 | 1,528,022 | 1,621,317
Income tax expense | (315,921) | (331,737) | (3,518,588) | (637,454)
Net Income (Loss) | $ 539,506 | $ 496,940 | $ (1,990,566) | $ 983,863
Net income (loss) per common share - basic | $ 0.07 | $ 0.07 | $ (0.28) | $ 0.14
Weighted average common shares outstanding - basic | 7,247,464 | 7,144,775 | 7,177,082 | 7,024,280
Net income (loss) per common share - diluted | $ 0.07 | $ 0.06 | $ (0.28) | $ 0.13
Weighted average common shares outstanding - diluted | 7,917,735 | 7,726,560 | 7,177,082 | 7,582,535
Other Comprehensive Income |  |  |  |
Unrealized gain on marketable securities (net of tax) | $ 1,254 | $ 33,701 | $ 120,000 | $ 26,640
Comprehensive Income (Loss) | $ 540,760 | $ 530,641 | $ (1,870,566) | $ 1,010,503

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